Table 2. Evaluation and observation measures: PaO2/FiO2, SOFA score, APACHE-II score.
| NPPV group | IPPV group | |
|---|---|---|
| PaO2/FiO2 (h0) mmHg | 126 (±31.9) | 121 (±23.4) |
| PaO2/FiO2 (h2) mmHg | 182 (±29.8) | 165 (±25.5)** |
| PaO2/FiO2 (h24) mmHg | 207 (±35.5) | 174 (±28.5)* |
| SOFA score (h0) | 4.3 (±0.63) | 4.4 (±0.71) |
| SOFA score (h24) | 4.2 (±0.61) | 4.5 (±0.82) |
| APACHE-II score (h0) | 21.3 (±3.58) | 20.9 (±4.21) |
| APACHE-II score (h24) | 22.1 (±3.66) | 23.6 (±3.21) |
*P<0.05, **P<0.01; APACHE, acute physiology and chronic health evaluation; SOFA, sequential organ failure assessment.